Box-blank cutting and creasing roll.



No. 725.863. PATENTED APR. 21, 1903.

. E. A. MOMILLIN. v BOX BLANK CUTTING AND GREASING ROLL.

APPLIUATION FILED NOV. 3, 1900.

H0 MODEL.

llNrTn STATES ArnNT Fries.

EDWARD A. MCMILLIN, OF NORTH ADAMS, MASSACHUSETTS.

BOX-BLANK CUTTING AND CREAS ING ROLL.

SPECIFICATION forming part of Letters Patent No. 725,863, dated April21, 1903.

Application filed November 3, 1900. Serial No. 35,357. (No model.)

To all wlzlom/ it may concern:

Be it known that I, EDWARD A. MOMILLIN, a citizen of the United States,residing at North Adams, county of Berkshire, and State ofMassachusetts, have invented certain new and useful Improvements inBox-Blank Outting and Creasing Rolls, of which the following is aspecification.

The invention relates to such improvements; and it consists of the novelconstruc tion and combination of parts hereinafter described andsubsequently claimed.

Reference may be had to the accompanying drawings and the referencecharacters marked thereon, which form a part of this specification.

Similar characters refer to similar parts in the several figures.

Figure 1 is a vertical transverse section of cutting and creasing rolls,one beingindicated by broken lines. Fig. 2 is a sectional View of one ofthe cutting and creasing rolls on a plane passing axially through theroll.

The object of my invention is to provide a machine adapted to out from aroll of paper pieces or blanks and cut and crease the same for use inthe manufacture of paper boxes therefrom, and I have shown in thedrawings rolls-adapted to out and crease blanks suit-' able for use inthe manufacture of paper boxes like that shown and described in UnitedStates Letters Patent No. 639,269, dated-December 19, 1899, granted tome for improvements in paper boxes.

Numerals 2 and 3 denote rolls which cooperate to feed the paper from asupply-roll (not shown) to cut off sections or blanks of paper each of asize adapted to form a paperbox and to out and crease each blank cut offso that the same can be folded up by hand or by machinery in thesubsequent operation of making the box.

In the manufacture of paper boxes like that described in my said PatentNo. 639,269 it is necessary that the blank of oblong rectangular formshould have certain portions cut therefrom and should be provided withnumerous creases or lines of indentation on one or other of its surfacesforming guides for bending the paper in the formation of the boxtherefrom. For the purpose of forming such lines of severance andindentation the rolls 2 3 are provided with a plurality of cutting andcreasing blades arranged at suitable angles, and I have shown in thedrawingsa novel hub-section 10, as by the screws or bolts 12,

inserted through the ring-sections, respectively, into the rim of thehub-section. The periphery of the hollow cylindrical roll thus formed isprovided with various grooves adapted to receive the respectivecuttingand creasing blades, which grooves are preferably of a width adapted totightly fit the respective blades, the blades being driven into therespective grooves with considerable force, so as to be tightly heldtherein by frictional engagement of the sides of the blade with thewalls of the groove. As a means for accurately supporting and adjustingthe blades so inserted I provide for each blade a plurality ofscrew-bolts severally inserted through screw-threaded apertures formedin the inner cylindrical surface of the hollow roll and adapted toengage and support the inner edge of the blade. Two or more of suchbolts may be used in connection with each blade. Blades have heretoforebeen secured by bolts requirin gbolt-holes extendingentirely throughsolid walls,'and other modes of securing blades in rolls are also known.My improvement is characterized by the fact that the blade-securingscrews are combined with a hollow roll or cylindrical shell in suchmanner that the comparatively short screws or screw-openings requiredextend only through a wall of the shell, whereby the screws areaccessible within the shell for adjustment. In the drawings the mannerin which the blades .13 are thus inserted in the periphery of the rolland adjustably supported bythe screw-bolts 14 is clearly illustrated.Either or both of the rolls may thus be provided with cutting orcreasing blades, as the nature of the work demands. In Fig. 1 I haveshown the lower roll 3 provided With steel plates 15, inserted in likemanncr.in peripheral grooves in po- Each of the rolls 2 and 3 is of ah0lsition to cooperate with the respective blades in the paper-roll toprevent wear upon the roll-surface. The plates so inserted may beadjusted by means of screws 16 in the same manner as the knives areadjusted in the upper roll.

By employing a hollow cylindrical roll I am able to provide the samewith a large number of cutting and creasing blades inserted asdescribed, and locate such blades diametrically opposite each other, asWell as in other positions, without in any way interfering with theirseparate accurate adjustment. By means of the adjusting-screws 14:either end of the blade can be adjusted relatively to the other, andwhen the blade extends from one to another of the sections of the rolloccupying alined grooves in the respective sections, as shown in Fig. 2,by providing such screwsupports in each of the roll-sections anyinequalities in the depths of the grooves in the respective sections canbe easily com pensated for by adjusting such screws, insuring a perfectsupport for the blade. By making the cutting and creasing rolls of aplurality of peripheral sections bolted together I am able to insert thelongitudinal cutting and creasing blades 46 between said sections andfirmly clamp said blades in place by bolting the roll-sections together,as shown in Fig. 5.

What I claim as new, and desire to secure by Letters Patent, is

1. In a machine of the class described, the combination with a rollhaving a hollow eylindrical shell, provided in its periphery with ablade-receiving groove; of a blade located in said groove; and aplurality of screw-sup ports inserted in screw-threaded apertures in theinterior surface of the cylindrical shell and accessible for adjustmentwithin the same, and adapted to engage and support the inner edge ofsaid groove-contained blade, substantially as described.

2. In a machine of the class described, the combination with a rollcomprising a pluralityof hollow cylindrical shell members securedtogether and provided with peripheral grooves in a plurality of saidmembers arranged in line with each other; of a blade located in saidgrooves and extending from one to another of said members, and aplurality of screw-supports inserted in screw-threaded apertures in theshell, said screw-supports being accessible for adjustment within therolls and adapted to engage and support the inner edge of said blade,substantially as described.

In testimony whereof I have hereunto set my hand this 11th day ofOctober, 1900.

EDWARD A. MOMILLIN.

Witnesses:

FRANK G. CURTIS, E. M. OREILLY.

